No this shouldn’t harm your pending I90.

Be sure you update the address and the I485 follows. Contact USCIS to confirm.

It was likely because a change of address was never completed.

It appears no if no other legal name was ever used.

Contact the RMV for specific guidance.

That is normal and part of the process and nothing to be worried about.

Timing varies and you must remain patient with processing.

A review of your documents must be done. More information is needed to better assist. Consult with an attorney for guidance.

Yes you may do so while the case is pending.

Yes you should provide recent documentation for the RFE response.